From: "Michal Koutný" <mkoutny@suse.com>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: akpm@linux-foundation.org, alim.akhtar@samsung.com,
alyssa@rosenzweig.io, asahi@lists.linux.dev,
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Subject: Re: [PATCH v3 00/10] IOMMU memory observability
Date: Thu, 4 Jan 2024 18:04:16 +0100 [thread overview]
Message-ID: <eng4vwaci5hwlicszgcld6uny55vll2bfs3vp2yjbjf3exhamg@zf6yc2uhax7w> (raw)
In-Reply-To: <CA+CK2bBE1bQuqZy3cbWiv8V3vJ8YNJZRayp6Wv-j2_9i37XT4g@mail.gmail.com>
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On Thu, Jan 04, 2024 at 11:29:43AM -0500, Pasha Tatashin <pasha.tatashin@soleen.com> wrote:
> Thank you for taking a look at this. The two patches [1] [2] which add
> GFP_KERNEL_ACCOUNT were sent separate from this series at request of
> reviewers:
Ah, I didn't catch that.
Though, I mean the patch 02/10 calls iommu_alloc_pages() with GFP_KERNEL
(and not a passed gfp from iommu_map).
Then patch 09/10 accounts all iommu_alloc_pages() under NR_IOMMU_PAGES.
I think there is a difference between what's shown NR_IOMMU_PAGES and
what will have __GFP_ACCOUNT because of that.
I.e. is it the intention that this difference is not subject to
limiting?
(Note: I'm not familiar with iommu code and moreover I'm only looking at
the two patch sets, not the complete code applied. So you may correct my
reasoning.)
Thanks,
Michal
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next prev parent reply other threads:[~2024-01-04 17:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-26 20:01 Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 01/10] iommu/vt-d: add wrapper functions for page allocations Pasha Tatashin
2023-12-27 0:27 ` David Rientjes
2023-12-26 20:01 ` [PATCH v3 02/10] iommu/amd: use page allocation function provided by iommu-pages.h Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 03/10] iommu/io-pgtable-arm: " Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 04/10] iommu/io-pgtable-dart: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 05/10] iommu/exynos: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 06/10] iommu/rockchip: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 07/10] iommu/sun50i: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 08/10] iommu/tegra-smmu: " Pasha Tatashin
2024-01-05 8:20 ` Thierry Reding
2023-12-26 20:02 ` [PATCH v3 09/10] iommu: observability of the IOMMU allocations Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 10/10] iommu: account IOMMU allocated memory Pasha Tatashin
2023-12-27 0:25 ` David Rientjes
2024-02-13 13:12 ` Will Deacon
2024-02-13 15:44 ` Pasha Tatashin
2024-02-16 17:57 ` Will Deacon
2024-02-16 19:48 ` Pasha Tatashin
2024-02-21 13:29 ` Will Deacon
2024-02-22 0:21 ` Jason Gunthorpe
2024-02-22 0:27 ` Pasha Tatashin
2023-12-27 10:05 ` [PATCH v3 00/10] IOMMU memory observability Bagas Sanjaya
2023-12-28 14:36 ` Pasha Tatashin
2024-01-04 15:31 ` Michal Koutný
2024-01-04 16:29 ` Pasha Tatashin
2024-01-04 17:04 ` Michal Koutný [this message]
2024-01-04 19:12 ` Pasha Tatashin
2024-01-05 9:02 ` Michal Koutný
2024-01-05 15:33 ` Pasha Tatashin
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